Aluminum profile bending arc processing mold

Abstract

The present invention relates to the technical field of aluminum profiles, and in particular to an aluminum profile bending mold, comprising a base plate rotatably connected to two support wheels spaced apart from each other, a telescopic rod fixedly connected to the base plate, and a pressing wheel rotatably connected to the telescopic rod; an air pump disposed on the base plate, connected to a connecting hose, which is connected to a flexible pipe; a plurality of rectangular support portions equidistantly fixedly connected to the outer wall of the flexible pipe; and a sealing mechanism sealing the ends of the flexible pipe. The present invention prevents deformation and ensures processing quality.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum profiles, and in particular to an aluminum profile bending processing die. Background Art

[0002] Aluminum profile refers to aluminum alloy profile. When processing aluminum profile, it is sometimes necessary to process the aluminum profile into an arc shape. When performing arc bending, in order to ensure the curvature of the bend, a pressure wheel is used to apply pressure on the inside of the aluminum alloy to bend the profile. The two supporting wheels support the outside of the aluminum alloy profile, which will cause pressure on the contact between the aluminum alloy profile and the supporting wheel and the pressure wheel. Since the general aluminum profile has a certain thickness and is not hollow inside, there is a certain support inside, and the inner cavity of the aluminum profile generally does not deform. However, when bending the thin-walled square tube aluminum alloy profile, since the wall of the aluminum alloy profile is thin and there is no support inside, the thin-walled square tube aluminum alloy profile will be subjected to pressure during the bending process, which will cause the wall of the thin-walled square tube aluminum alloy profile to sink towards the inner cavity under pressure, causing deformation of the inner cavity, affecting the cost and quality of the thin-walled square tube aluminum alloy profile during arc bending. Summary of the Invention

[0003] The purpose of the present invention is to solve the problem in the prior art that the wall of thin-walled square tube aluminum alloy profile is concave towards the inner cavity under pressure, causing the inner cavity to deform, which affects the cost and quality of the thin-walled square tube aluminum alloy profile during arc bending processing, and to propose an aluminum profile arc bending processing mold.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A bending die for an aluminum profile is designed, comprising a base plate, two support wheels rotatably connected to the base plate, the two support wheels being spaced apart, a telescopic rod fixedly connected to the base plate, and a pressing wheel rotatably connected to the telescopic rod;

[0006] An air pump is provided on the bottom plate, a connecting hose is provided on the air pump, a hose is provided on the connecting hose, and a plurality of supporting parts are fixedly connected to the outer wall of the hose at equal distances, and the supporting parts are rectangular in structure;

[0007] The end of the hose is sealed by a sealing mechanism.

[0008] Preferably, the sealing mechanism includes a connecting sleeve and a sealing cover, the connecting sleeve is fixedly connected to the hose, and the connecting sleeve is threadedly connected to the sealing cover.

[0009] Preferably, a cavity is provided in the support portion, a vent is provided on the hose, the vent is communicated with the cavity, a moving block is provided in the cavity, a sealing gasket is provided on the moving block, the sealing gasket seals the moving block and the cavity, a support block is fixedly connected to the moving block, and the support block extends out of the support portion.

[0010] Preferably, the air pump is a dual-purpose air pump for whipping and beating.

[0011] Preferably, the upper circular shaft of the support portion is provided with multiple communicating sleeves, and the multiple communicating sleeves are all connected to the cavity. There are sealing plugs in the multiple communicating sleeves, and the sealing plugs seal the communicating sleeves. One side of the sealing plug is connected to the outer wall of the hose through a connecting mechanism.

[0012] Preferably, the connecting mechanism includes a fixed pulley and a pull rope, the fixed pulley is mounted on the supporting portion, one end of the pull rope is connected to the sealing plug, and the other end passes through the fixed pulley and is connected to the hose.

[0013] Preferably, a retaining ring is fixedly connected to the inner wall of the connecting sleeve, and the inner diameter of the retaining ring is smaller than the diameter of the sealing plug.

[0014] Preferably, a limiting rod is fixedly connected to the sealing plug, and the limiting rod extends into the cavity.

[0015] Preferably, the lower ends of the two supporting wheels and the pressing wheel are in contact with the upper surface of the base plate.

[0016] The present invention proposes an aluminum profile bending arc processing mold, which has the beneficial effect of supporting the inner wall of the thin-walled square tube aluminum alloy profile so that the thin wall of the thin-walled square tube aluminum alloy profile in contact with the pressing wheel and the supporting wheel will not be concave toward the inner cavity, thereby preventing deformation and ensuring the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an aluminum profile bending mold proposed by the present invention;

[0018] Figure 2 This is a top view of an aluminum profile bending die proposed by the present invention;

[0019] Figure 3 A three-dimensional diagram of an aluminum profile bending die (with the thin-walled aluminum alloy square tube profile hidden) proposed by the present invention;

[0020] Figure 4 This is a structural schematic diagram of the support portion of an aluminum profile bending mold proposed by the present invention;

[0021] Figure 5 The present invention proposes an aluminum profile bending arc processing mold Figure 4 Enlarged view of part A;

[0022] Figure 6 This is a cross-sectional view of the hose portion of an aluminum profile bending mold proposed by the present invention;

[0023] Figure 7 The present invention proposes an aluminum profile bending arc processing mold Figure 6 Enlarged view of part B;

[0024] Figure 8 This is a schematic structural diagram of the cavity portion of an aluminum profile bending mold proposed by the present invention.

[0025] In the figure: base plate 1, support wheel 2, telescopic rod 3, pressing wheel 4, hose 5, air pump 6, connecting hose 7, connecting sleeve 8, sealing cover 9, support part 10, support block 11, fixed pulley 12, pull rope 13, connecting sleeve 14, retaining ring 15, vent 16, moving block 17, sealing gasket 18, limit rod 19, sealing plug 20, cavity 21. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1

[0028] Reference Figure 1-Figure 3 A bending mold for aluminum profiles includes a base plate 1, two supporting wheels 2 rotatably connected to the base plate 1, the two supporting wheels 2 are spaced apart, a telescopic rod 3 is fixedly connected to the base plate 1, and the telescopic rod 3 is rotatably connected to a pressing wheel 4. The telescopic rod 3 is extended to drive the pressing wheel 4 to move, so that the pressing wheel 4 squeezes the thin-walled square tube aluminum alloy profile placed between the two supporting wheels 2 and the pressing wheel 4, thereby bending the aluminum alloy profile into an arc shape.

[0029] The lower ends of the two supporting wheels 2 and the pressing wheel 4 are in contact with the upper surface of the base plate 1 so that when the thin-walled square tube aluminum alloy profile is placed on the base plate 1, the lower end is flush with the lower ends of the supporting wheels 2 and the pressing wheel 4.

[0030] An air pump 6 is provided on the base plate 1, and the air pump 6 inflates the hose 5. A connecting hose 7 is provided on the air pump 6, and a valve is provided on the connecting hose 7. The connecting hose 7 is connected to the hose 5. A plurality of support parts 10 are fixedly connected at equal distances on the outer wall of the hose 5. The support part 10 is a rectangular structure. The air pump 6 is used to inflate the hose 5 so that the hose 5 becomes straight and has a certain hardness, which makes it convenient to insert the hose 5 into the thin-walled square tube aluminum alloy profile, so that the support part 10 supports the inner wall of the thin-walled square tube aluminum alloy profile. When bending, the thin wall of the thin-walled square tube aluminum alloy profile that contacts the pressing wheel 4 and the support wheel 2 will not be concave toward the inner cavity, thereby preventing deformation and ensuring the quality of processing. Since a hose 5 is used, the hose 5 can be bent along with the aluminum profile. After bending, since the hose 5 is flexible, it can also be easily taken out by pulling.

[0031] The end of the hose 5 is sealed by a sealing mechanism, which includes a connecting sleeve 8 and a sealing cover 9. The connecting sleeve 8 is fixedly connected to the hose 5, and the connecting sleeve 8 is threadedly connected to the sealing cover 9. The sealing cover 9 seals one end of the hose 5.

[0032] Example 2

[0033] In Example 1, since the size of the support portion 10 is fixed, when the support portion 10 is used to support the thin-walled square tube aluminum alloy profile, only the thin-walled square tube aluminum alloy profile of a fixed size can be supported, thereby affecting the applicability of the device. Figures 1-8 As another preferred embodiment of the present invention, on the basis of embodiment 1, a cavity 21 is provided in the support portion 10, a vent hole 16 is provided on the hose 5, the vent hole 16 is connected to the cavity 21, a moving block 17 is provided in the cavity 21, a sealing gasket 18 is provided on the moving block 17, the sealing gasket 18 seals the moving block 17 and the cavity 21, a support block 11 is fixedly connected to the moving block 17, the support block 11 extends out of the support portion 10, the hose 5 is inflated by the air pump 6, the vent hole 16 The air is conducted so that the air enters the cavity 21. As the air is continuously filled, the pressure in the cavity 21 increases, so that the air pushes the moving block 17 to move, changing the position of the support block 11 in the cavity 21, so that the support block 11 can abut against the thin-walled square tube aluminum alloy profile, thereby making the thin-walled square tube aluminum alloy profile. Since the support block 11 is movable, the support block 11 can support thin-walled square tube aluminum alloy profiles of different sizes, thereby improving the applicability of the device.

[0034] Example 3

[0035] In Example 2, since the air pump 6 only needs to be inflated, an air pump can be used. When the support portion 10 is used to support the inner wall of the thin-walled square tube aluminum alloy profile, when the hose 5 is placed in the thin-walled square tube aluminum alloy profile, part of the support portion 10 at the end of the hose 5 will be located outside the thin-walled square tube aluminum alloy profile, such as Figure 1-Figure 2 As shown, after the air pump inflates the hose 5, the support block 11 on the thin-walled square tube aluminum alloy profile support portion 10 is exposed. Since there is no limit on the inner wall of the thin-walled square tube aluminum alloy profile, the moving distance is greater than the moving distance of the support block 11 inside the thin-walled square tube aluminum alloy profile. When the hose 5 is deflated and the hose 5 is pulled out, the support block 11 exposed at the end will be stuck on the thin-walled square tube aluminum alloy profile and cannot pass through the middle cavity of the thin-walled square tube aluminum alloy profile, resulting in the hose 5 cannot be pulled out directly. It is necessary to press the support block 11 and press the support block 11 into the cavity 21 before the hose 5 can be pulled out. When the number of exposed support blocks 11 is large, the operation becomes more complicated, making it inconvenient to pull out the hose 5. Figure 1-Figure 3 , as another preferred embodiment of the present invention, based on Example 2.

[0036] The air pump 6 is a dual-purpose air pump for whipping. Since it is a dual-purpose air pump, after the bending is completed, the pressure in the hose 5 will be reduced by pumping air, and will be lower than the external atmospheric pressure. Since the hose 5 is in a closed space, the cavity 21 is connected to the hose 5, so that the pressure in the cavity 21 is also lower than the external pressure, resulting in the support block 11 being retracted into the cavity 21 under the action of the external atmospheric pressure, and the support block 11 with the thin-walled square tube aluminum alloy profile exposed at the end will also be retracted into the cavity 21, so that there is a gap between all the support blocks 11 and the thin-walled square tube aluminum alloy profile. When the hose 5 is pulled, the support block 11 can pass through the middle cavity of the thin-walled square tube aluminum alloy profile, avoiding the situation where the support block 11 with the thin-walled square tube aluminum alloy profile exposed at the end is stuck and limited, so that the hose 5 can be directly pulled and pulled out, which increases the convenience during operation.

[0037] By placing the hose 5 into the thin-walled square tube aluminum alloy profile, exposing both ends of the hose 5, and then pumping the dual-purpose air pump to inflate, the air in the hose 5 will enter the cavity 21. As the air continues to be filled, the pressure in the cavity 21 increases, so that the air pushes the moving block 17 to move, changing the position of the support block 11 in the cavity 21, so that the support block 11 can abut against and support the thin-walled square tube aluminum alloy profile. When bending, the thin wall of the thin-walled square tube aluminum alloy profile in contact with the pressing wheel 4 and the support wheel 2 will not be deformed. In the case of a concave inner cavity, after the bending is completed, the air is pumped out by pumping a dual-purpose air pump to reduce the pressure in the hose 5 to be lower than the external atmospheric pressure. Since the hose 5 is in a closed space, the cavity 21 is connected to the hose 5, so that the pressure in the cavity 21 is also lower than the external pressure, causing the support block 11 to shrink into the cavity 21 under the action of the external atmospheric pressure, avoiding the support block 11 with the thin-walled square tube aluminum alloy profile exposed at the end to cause obstruction and limitation. The hose 5 can be separated from the bent thin-walled square tube aluminum alloy profile by pulling the hose 5.

[0038] Example 4

[0039] In Example 3, when the hose 5 is taken in and out, in order to prevent the inner wall of the thin-walled square tube aluminum alloy profile of the support block 11 from abutting against each other, the pressure in the hose 5 is reduced by means of air extraction, resulting in the pressure in the hose 5 being lower than the standard atmospheric pressure outside. There is a pressure difference, and the hose 5 is generally made of a plastic tube, which causes the hose 5 to shrink, and the connection part between the hose 5 and the support part 10 also shrinks inward, which easily causes the hose 5 to separate from the support part 10. Since a cavity 21 is provided in the support part 10, the cavity 21 will leak, resulting in leakage during inflation or deflating, affecting the use of the device. Figure 4-Figure 8 , as another preferred embodiment of the present invention, based on Example 3.

[0040] The support portion 10 is provided with a plurality of communicating sleeves 14 on the same circular axis. The plurality of communicating sleeves 14 are all connected to the cavity 21. The plurality of communicating sleeves 14 are all abutted with sealing plugs 20. The sealing plugs 20 seal the communicating sleeves 14. One side of the sealing plug 20 is connected to the outer wall of the hose 5 through a connecting mechanism. When inflating, since the pressure in the hose 5 is greater than the external pressure, the pressure in the cavity 21 is greater than the external atmospheric pressure, causing the sealing plug 20 to move, causing the drawstring 13 to become relaxed. Since the thin-walled square tube aluminum alloy needs to be processed and bent later, the hose 5 will also bend. The bending of the hose 5 will exert tension on the drawstring 13. If the drawstring 13 used is always taut In this state, the pull rope 13 will limit the bending of the hose 5, which is not conducive to the bending of the hose 5 along with the thin-walled square tube aluminum alloy. When exhausting, the pressure in the cavity 21 is lower than the external atmospheric pressure, which causes the sealing plug 20 to move toward the cavity 21, generating a pulling force on the pull rope 13, so that the pull rope 13 plays a pulling and supporting role on the outer wall of the hose 5, avoiding the hose 5 at both ends of the support part 10 from drying up during exhaustion, thereby ensuring the connection effect between the hose 5 and the support part 10, so that the pull rope 13 is in a relaxed state during inflation and does not affect the bending of the hose 5. The pull rope 13 is in a straight state during exhaustion, which plays a pulling and supporting role on the outer wall of the hose 5.

[0041] The connecting mechanism includes a fixed pulley 12 and a pull rope 13. The fixed pulley 12 is installed on the support part 10. One end of the pull rope 13 is connected to the sealing plug 20, and the other end passes through the fixed pulley 12 and is connected to the hose 5. The sealing plug 20 seals the connecting sleeve 14. At the same time, the sealing plug 20 can move in the connecting sleeve 14 so as to change the state of the pull rope 13 through the internal and external pressure difference. The fixed pulley 12 changes the direction of the pulling force of the pull rope 13.

[0042] A retaining ring 15 is fixedly connected to the inner wall of the connecting sleeve 14. The inner diameter of the retaining ring 15 is smaller than the diameter of the sealing plug 20. The retaining ring 15 serves as a limit for the sealing plug 20, thereby preventing the sealing plug 20 from moving during inflation, causing the sealing plug 20 to move out of the connecting sleeve 14.

[0043] Example 5

[0044] Reference Figure 7 As another preferred embodiment of the present invention, based on embodiment 4, a limiting rod 19 is fixedly connected to the sealing plug 20, and the limiting rod 19 extends into the cavity 21. The limiting rod 19 is designed so that it can limit the support block 11, preventing the support block 11 from moving and contacting the inner wall of the hose 5 during air extraction, thereby causing pressure on the inner wall of the hose 5 and causing the connection between the hose 5 and the support portion 10 to fall off, thereby affecting the sealing performance of the hose 5.

[0045] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A die for bending an aluminum profile, comprising a base plate (1), characterized in that: The bottom plate (1) is rotatably connected to two support wheels (2), the two support wheels (2) are spaced apart, a telescopic rod (3) is fixedly connected to the bottom plate (1), and the telescopic rod (3) is rotatably connected to a pressing wheel (4); An air pump (6) is provided on the bottom plate (1), a connecting hose (7) is provided on the air pump (6), the connecting hose (7) is provided on the hose (5), a plurality of supporting parts (10) are fixedly connected at equal distances on the outer wall of the hose (5), and the supporting part (10) is a rectangular structure; a cavity (21) is provided in the supporting part (10), a vent (16) is provided on the hose (5), the vent (16) is connected to the cavity (21), a moving block (17) is provided in the cavity (21), a sealing gasket (18) is provided on the moving block (17), and the sealing gasket (18) seals the moving block (17) and the cavity (21); a supporting block (11) is fixedly connected to the moving block (17), and the supporting block (11) extends out of the supporting part (10); The support portion (10) is provided with a plurality of communication sleeves (14) on the upper circular axis. The plurality of communication sleeves (14) are all connected to the cavity (21). The plurality of communication sleeves (14) are all abutted with sealing plugs (20). The sealing plugs (20) seal the communication sleeves (14). One side of the sealing plug (20) is connected to the outer wall of the hose (5) through a connecting mechanism. The end of the hose (5) is sealed by a sealing mechanism, wherein the sealing mechanism comprises a connecting sleeve (8) and a sealing cover (9), wherein the connecting sleeve (8) is fixedly connected to the hose (5), and the connecting sleeve (8) is threadedly connected to the sealing cover (9).

2. The aluminum profile bending die according to claim 1, characterized in that: The air pump (6) is a dual-purpose air pump for whipping and beating.

3. The aluminum profile bending die according to claim 1, characterized in that: The connecting mechanism comprises a fixed pulley (12) and a pull rope (13); the fixed pulley (12) is mounted on the support portion (10); one end of the pull rope (13) is connected to the sealing plug (20), and the other end passes through the fixed pulley (12) and is connected to the hose (5).

4. The aluminum profile bending die according to claim 3, characterized in that: A retaining ring (15) is fixedly connected to the inner wall of the communication sleeve (14), and the inner diameter of the retaining ring (15) is smaller than the diameter of the sealing plug (20).

5. The aluminum profile bending die according to claim 4, characterized in that: A limiting rod (19) is fixedly connected to the sealing plug (20), and the limiting rod (19) extends into the cavity (21).

6. The aluminum profile bending die according to any one of claims 1 to 5, characterized in that: The lower ends of the two supporting wheels (2) and the pressing wheel (4) are in contact with the upper surface of the bottom plate (1).

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